Creep Processes of Continental Slope and Rise Sediments

大陆坡的蠕变过程和上升沉积物

• 批准号: 8714644
• 负责人: Armand Silva
• 金额: $ 27.31万
• 依托单位: University of Rhode Island
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-09-15 至 1991-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8714644&HistoricalAwards=false
• 关键词: Creep; Processes; Continental; Slope; Rise

There is considerable geological and geophysical evidence that downslope sediment deformations occur due to creep on or within many submarine slopes. The rate of creep is primarily controlled by the configuration of the slope and the sediment type. The objective of this research program is to understand the mechanisms of creep and creep rupture and be able to predict creep deformations both quantitatively as well as qualitatively. To achieve this goal four distinct phases of work are proposed: a geological/geophysical analysis, a laboratory testing program to determine creep related material properties and to verify constructive models, development of a finite element procedure to analyze creep deformations, and laboratory physical models to study deformation patterns under simplifed conditions.

有相当多的地质和地球物理证据表明 滑坡沉积物变形是由于蠕变或 在许多海底斜坡。 蠕变率主要是 受地形地貌和沉积物的控制 类型. 这项研究计划的目的是了解 蠕变和蠕变断裂的机制，并能够预测 蠕变变形的定量以及定性。 为实现这一目标，提出了四个不同的工作阶段： 地质/地球物理分析，实验室测试程序 确定与蠕变相关的材料特性，并验证 结构模型，有限元程序的开发， 分析蠕变变形和实验室物理模型， 研究了简化条件下的变形模式。